Hendrik Van de Hulst Biography

Hendrik Van de Hulst

(Utrecht, 1918) Dutch astronomer.He predicted the existence of radio radiation, wavelength 21 cm, from atoms in space.This radiation was experimentally detected in the early 1950s by F.Bloch and E.M.Purcell and has made it possible to determine with great precision the position and shape of the spiral arms of the Milky Way.

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John betjeman Biography

John Betjeman (London, 1906-Trebethrick, 1984) British poet.He succeeded C.D.Lewis as "Poet Laureate" (1972).He became known with Selected Poems (1948).His work, technically impeccable and tinged with subtle humor, uses traditional metric forms ( Summoned by bells , 1960; High and low , 1966).

Phoenician numbers

In History Today Online we explained in a previous post which were the Arabic numerals, but the truth is that they are not the only ones, and although somewhat complicated to understand, the truth is that the Phoenician numbers are perhaps much more difficult.In History Today Online we talk to you now of which are the Phoenician numbers. The Phoenicians also known as Canaanites, although they were a civilization that occupied a region called Canaan and was a territory that currently encompasses Israel, Syria and Lebanon.They always stood out for their art, closely linked to the different Mediterranean influences and as not for an alphabet that they created and that is in fact the origin of the alphabet that we know today, they also had a numerical system and that we tried to decipher below. The Phoenician Numbers: The main basis of the Phoenician numbers, are the angles and the stripes since these are the base they used to create the different numbers.Depending on how e...

Robin Williams Biography

Actor Robin Williams has died.One of the best performers in the cinema for the past 30 years and who has died at 63.In Overhistory we now review the biography of Robin Williams. Robin Williams Biography Robin McLaurim Williams, known as Robin Williams He had countless titles featured in the cinema, including "Good Morning Vietnam", "The Fisher King" or "The Club of the Dead Poets" for which he was nominated for Oscar for Best Actor. Williams was born in Chicago, Illinois, on July 21, 1951 .He was the son of a model and an executive in the automobile industry.His first years were dedicated to his studies and Sports practice, without showing any interest in the ctuacion. In 1967 the family moved to Marina County, in California, and that is where Donce began his attraction to the theater, so decides to go to New York to enter the Juilliard School drama school. His first acting opportunity comes in 1976 with a first role in a comedy ....

Angel Guimerà Biography

Ángel Guimerà (Ángel Guimerà i Jorge; Santa Cruz de Tenerife, 1845-Barcelona, 1924) Spanish playwright in the Catalan language.He belonged to a Catalan family from El Vendrell (Bajo Penedés) accidentally established in the Canaries.When he was seven years old, his relatives returned to Catalonia, and the boy lived in El Vendrell and later in Barcelona, where he studied at the Escuelas Pías until his father took him to the manor house with him. Ángel Guimerà When, on the death of his father, Guimerà settled permanently in Barcelona, he was already known as a poet in the literary circles of the Catalan capital; There, together with Francesc Mateu and his inseparable friend Pere Aldavert, he founded the fortnightly magazine La Renaixença , an organ of literary and political Catalanism, of which he was a collaborator and later director. In 1874 he joined the group of "Jove Catalunya" and actively participated in the political and cultural movement that advocated t...

Jose Agostinho de Macedo Biography

José Agostinho de Macedo (Beja, 1761-Pedrouços, near Lisbon, 1831) Portuguese writer.Chaplain to the Prince Regent of Portugal (1810) and historian of the kingdom (1830), he was hostile to liberal ideas.He stood out as a poet, sacred orator and libelist.He wrote Meditation (1813), Orient (1814) and the satirical poem Los asnos (1827).

Alejandro Malaspina Biography

Alejandro Malaspina (Palermo, present-day Italy, 1754-Pontremoli, id., 1809) Italian sailor in the service of the Spanish Crown.He distinguished himself in various naval operations against England, after which he was promoted to lieutenant (1780).In 1789 he led a scientific expedition commanded by the Corvettes Discovered and Daring with the aim of circumnavigating the globe, taking on board important scientific personalities and a good number of expert cartoonists.In the course of it he traveled the American coasts of the Viceroyalty of the Río de la Plata and the western ones from Tierra del Fuego to Alaska, as well as the Philippines and some archipelagos of Oceania, to finally return in September 1794.However, Malaspina fell from grace and, in November 1795, was accused by Manuel Godoy of revolutionary and conspirator and sentenced to ten years in prison.In 1803 he was exiled to Italy, where he died.

Alejo de Vahía Biography

Alejo de Vahía (documented between 1490 and 1505) Spanish sculptor of probable Nordic origin.Established in Becerril de Campos, he spread his work from there, during the Spanish-Flemish period, throughout the Palencia and Valladolid area.In addition to its stone carvings (tombs, etc.), its production is basically made up of devotional imagery ( María Magdalena of the main altarpiece of the Cathedral of Palencia).

James hargreaves Biography

James Hargreaves (Hoarstones, 1834-Widnes, 1915) British chemist.Dedicated to the chemical industry, he perfected soap manufacturing methods, started recycling processes for the recovery of phosphates and invented an engine, a precursor to the diesel engine, that used liquid tar as fuel.

James olds Biography

James Olds (1922-1976) American psychologist.He studied at Amherst College and received his doctorate from the Harvard Social Relations Laboratory in 1952, working with Richard Salomon.In 1953 he moved to McGill as a fellow to learn physiological techniques.There he discovered that electrical stimulation of the septal area, the lateral hypothalamus, and some other areas could act as a reward; this was one of the most significant physiological contributions to learning.He became a member of the department of psychology at the University of Michigan, where he continued to explore the anatomy, pharmacology, and behavioral characteristics of reward for brain stimulation.In 1967 he went to the California Institute of Technology, where he remained until his death; There he devoted himself mainly to the study of learning.

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